Customs jurisdiction amendments reassign commissioner-level postings and revise territorial areas and officer designations under notification. Amendments revise Table 1 and Table 2 of Notification No. 82/2017 Customs (N.T.) to substitute commissioner level entries, reassign Commissioner of Customs (Airport and General), Delhi, redefine officer designations and subordinate officer composition for Mumbai Zone I and Chennai areas, specify ports, airport, inland container depots, district and taluk jurisdictions, and include Continental Shelf and Exclusive Economic Zone coverage; certain items are omitted and a district listing is expanded. The notification takes effect from the commencement date stated in the instrument.